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经营范围
发明名称
SEALING DEVICE FOR COKE OVEN DOORS
摘要
申请公布号
GB1590854(A)
申请公布日期
1981.06.10
申请号
GB19770033787
申请日期
1977.08.11
申请人
NIPPON OIL SEAL INDUSTRY CO LTD
发明人
分类号
C10B25/16;(IPC1-7):C10B25/16
主分类号
C10B25/16
代理机构
代理人
主权项
地址
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